1260642 has 16 divisors (see below), whose sum is σ = 2538720. Its totient is φ = 417312.

The previous prime is 1260641. The next prime is 1260643. The reversal of 1260642 is 2460621.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1260641) and next prime (1260643).

It is not an unprimeable number, because it can be changed into a prime (1260641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334 + ... + 1622.

It is an arithmetic number, because the mean of its divisors is an integer number (158670).

2^1260642 is an apocalyptic number.

1260642 is an abundant number, since it is smaller than the sum of its proper divisors (1278078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1260642 is a wasteful number, since it uses less digits than its factorization.

1260642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1260642 is about 1122.7831491432. The cubic root of 1260642 is about 108.0265709657.

Subtracting from 1260642 its sum of digits (21), we obtain a palindrome (1260621).

The spelling of 1260642 in words is "one million, two hundred sixty thousand, six hundred forty-two".